EP0460897A2 - Compositions d'une poudre de savon - Google Patents

Compositions d'une poudre de savon Download PDF

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Publication number
EP0460897A2
EP0460897A2 EP19910305004 EP91305004A EP0460897A2 EP 0460897 A2 EP0460897 A2 EP 0460897A2 EP 19910305004 EP19910305004 EP 19910305004 EP 91305004 A EP91305004 A EP 91305004A EP 0460897 A2 EP0460897 A2 EP 0460897A2
Authority
EP
European Patent Office
Prior art keywords
soap
powder
detergent
fatty acid
soap powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP19910305004
Other languages
German (de)
English (en)
Other versions
EP0460897A3 (en
Inventor
Jeffery Harry Connor
Robert Donaldson
Andrew Timothy Hight
Gordon George Mcleod
Donald Peter
Peter John Russell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0460897A2 publication Critical patent/EP0460897A2/fr
Publication of EP0460897A3 publication Critical patent/EP0460897A3/en
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
    • C11D17/065—High-density particulate detergent compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D9/00—Compositions of detergents based essentially on soap
    • C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29—Sulfates of polyoxyalkylene ethers

Definitions

  • the present invention relates to soap-based detergent powders for washing fabrics.
  • GB 2 034 741B discloses a soap powder composition of improved inherent solubility.
  • the soap powder comprises, in addition to builder salts and other conventional ingredients, from 15 to 60 wt% of a defined soap blend having a low Krafft temperature (below 25°C), derived from a C12-C22 fatty acid mixture comprising
  • This soap blend has been found to give good detergency with improved inherent solubility compared with standard coconut/tallow blends.
  • the wetting characteristics of powders containing this blend have not proved ideal, the formation of clots being especially noticeable when the powders are used in a top-loading washing machine at a low wash temperature.
  • EP 340 013A discloses detergent powders based on synthetic detergent-active compounds (notably alkylbenzene sulphonate) and zeolite, granulated and densified to bulk densities above 650 g/litre in a high-speed mixer/granulator having both a stirring action and a cutting action, for example, the Fukae FS series mixer/granulator.
  • synthetic detergent-active compounds notably alkylbenzene sulphonate
  • zeolite granulated and densified to bulk densities above 650 g/litre in a high-speed mixer/granulator having both a stirring action and a cutting action, for example, the Fukae FS series mixer/granulator.
  • JP 62 086 099A discloses a process for the manufacture of a composite soap powder (the term used in Japan for powders containing both soap and synthetic detergent-active materials, when the soap amounts to less than 70 wt% of the total detergent-active material).
  • fatty acid soap in the form of chips
  • synthetic detergent-active agent and inorganic and/or organic builders are disintegrated and mixed in a lateral-type mixer/granulator (a cylindrical housing containing two types of stirrers), to give a high-bulk-density product consisting of spherical granules even though the content of non-soap detergent is high.
  • the product typically contains 40-55 wt% soap, 5-20 wt% nonionic surfactant (7-15 wt% exemplified) and 25-50 wt% builder.
  • the choice of soap is apparently not critical; sodium beef tallow soap, potassium beef tallow soap and a mixed soap (coconut/soybean/beef tallow 4:1:15) are exemplified; and there is no disclosure of low-Krafft-temperature soap.
  • the present invention accordingly provides a soap powder having a bulk density of at least 600 g/litre, preferably at least 650 g/litre, and comprising:
  • the invention also provides a process for the preparation of a soap powder, which includes the step of treating a particulate starting material comprising
  • the soap powder of the invention contains two essential ingredients: a detergent-active component (a) based on fatty acid soap, and a builder/salts component (b).
  • the detergent-active component (a) is the detergent-active component (a)
  • the detergent-active component (a) constitutes from 35 to 80 wt% of the soap powder of the invention, preferably from 40 to 60 wt%.
  • At least 70 wt% of the detergent-active component (a) is constituted by fatty acid soap.
  • the soap is of a type that has improved solubility at low wash temperatures, as characterised by a Krafft temperature not higher than 20°C, preferably not higher than 10°C, and desirably not higher than 8°C.
  • the solubility of a pure soap in water is determined by its Krafft temperature, which is the temperature above which the soap becomes readily soluble in water by the formation of micelles: see Lloyd 1 Osipow in "Surface Chemistry, Theory and Industrial Application", published by Reinhold & Co, New York, 1952.
  • the detergent formulator is normally dealing not with pure soaps but with natural products which are mixtures of salts of fatty acids of different chain length and unsaturation, and with blends of those.
  • the fatty acid soap used in the soap powder of the present invention may have any suitable cation, for example, sodium, potassium, ammonium, substituted ammonium (for example, monoethanolamine, triethanolamine), or any combination of these.
  • potassium soaps tend to have lower Krafft temperatures than the corresponding sodium soaps; and so do the ammonium and amine soaps.
  • all the non-sodium soaps are more expensive to produce than sodium salts; and may also give processing problems because of greater softness.
  • the low Krafft temperature is achieved by the use of a blend of soaps of fatty acids having a specially selected combination of chain lengths and unsaturation. This enables sodium soaps, which are cheaper and of proven processability, to be used rather than soaps of alternative cations; and the good low-temperature solubility is not obtained at the expense of detergency.
  • the fatty acid soap (al) in the soap powder of the invention is desirably a mixture of water-soluble salts of C12 C22 fatty acids comprising:
  • coconut oil, palm kernel oil and tallow are rich in the Group (i) fatty acids and tallow class fats are rich in the saturated and unsaturated fatty acids of Groups (ii) and (iii).
  • Groundnut oil is a preferred natural source to enhance Group (iii) fatty acid content since this is high in oleic acid content and relatively low in linoleic and linolenic acids.
  • oils relatively rich in Group (iii) acids include soybean oil, sunflower oil, rapeseed oil and cottonseed oil, but since those are all prone to oxidation due to a high linoleic/linolenic content, they are less preferred, and are best used in combination with a suitable antioxidant, for example ethylenediaminetetraacetic acid and/or ethane-1-hydroxy-1,1-diphosphonic acid.
  • Preferred soaps for use in the present invention may be obtained by combining sodium coconut soap with sodium oleate.
  • One especially preferred mix comprises 50 wt% of each and contains 37 wt% Group (i) soap, 13 wt% Group (ii) soap and 50 wt% Group (iii) soap; its Krafft temperature is about 5°C.
  • the detergency of the fatty acid soap (a1) may if desired be boosted by the additional presence of non-soap (synthetic) detergent-active material (a2), provided that at least 70 wt% of the total detergent-active material is constituted by soap.
  • Non-soap detergent active material (a2) is suitably present in an amount of from 10 to 30 wt%, more preferably from 20 to 28 wt%, based on the total detergent-active material (a).
  • Non-soap detergents are of course extremely well-known in the art.
  • Anionic non-soap detergent-active materials are especially preferred because they enhance foaming as well as detergency.
  • Suitable anionic surfactants include alkylbenzene sulphonates, alkane sulphonates, olefin sulphonates, primary and secondary alcohol sulphates, alkyl ether sulphates, dialkyl sulphosuccinates and fatty acid ester sulphonates.
  • Especially preferred for use in the soap powders of the present invention are alkyl ether sulphates.
  • Nonionic surfactants may also be used, but give very low-foaming compositions and are not preferred for compositions intended for use in top-loading washing machines.
  • Suitable nonionic surfactants include the primary and secondary alcohol ethoxylates, especially the aliphatic C12 C15 primary and secondary alcohols ethoxylated with an average of 3-20 moles of ethylene oxide per mole of alcohol; alkylphenol ethoxylates; and alkylpolyglycosides. These lists are not intended to be exhaustive and for further examples the reader is referred to the standard literature, for example "Surface-Active Agents and Detergents", Volumes 1 and 11, by Schwartz, Perry and Berch.
  • compositions of the invention also contain inorganic salts which may have a detergency building function, and/or organic builder salts. Owing to the self-building nature of soaps the level of builder required is not as high as in a wholly non-soap detergent composition. Inorganic and/or builder salts are present in an amount of from 20 to 65 wt%.
  • One inorganic salt that is advantageously present is sodium carbonate. This enhances detergency by increasing alkalinity, as well as contributing to detergency building.
  • Sodium carbonate is suitably used in an amount of from 5 to 30 wt%, preferably from 15 to 25 wt%.
  • Another preferred ingredient is sodium silicate, suitably in an amount of from 2 to 15 wt%. This also provides alkalinity, and protection against the corrosion of metal parts in washing machines.
  • Neutral salts such as sodium sulphate may also be present in order to increase ionic strength.
  • Inorganic builders that may be present include crystalline or amorphous alkali metal aluminosilicates, for example, zeolites A and X, and the novel zeolitemaximum aluminium zeolite P - described and claimed in EP 384 070A (Unilever).
  • Organic builder salts that may be present include polycarboxylate polymers such as polyacrylates, acrylic/maleic copolymers, and acrylic phosphinates; monomeric polycarboxylates such as citrates, gluconates, oxydisuccinates, glycerol mono-, di- and trisuccinates, carboxymethyloxysuccinates, carboxymethyloxymalonates, dipicolinates, hydroxyethyliminodiacetates; alkyl- and alkenylmalonates and succinates, and sulphonated fatty acid salts.
  • polycarboxylate polymers such as polyacrylates, acrylic/maleic copolymers, and acrylic phosphinates
  • monomeric polycarboxylates such as citrates, gluconates, oxydisuccinates, glycerol mono-, di- and trisuccinates, carboxymethyloxysuccinates, carboxymethyloxymalonates, dipicolinates, hydroxyethylimin
  • compositions of the invention preferably do not contain more than 5 wt% of inorganic phosphate builders, and are desirably substantially free of phosphate builders.
  • the soap powder compositions of the invention may if desired or appropriate contain other functional ingredients, for example, bleach ingredients, fluorescers, enzymes, hydrotropes such as sodium toluene sulphonate or sodium xylene sulphonate, and perfumes.
  • other functional ingredients for example, bleach ingredients, fluorescers, enzymes, hydrotropes such as sodium toluene sulphonate or sodium xylene sulphonate, and perfumes.
  • the bulk density is at least 600 g/litre. Bulk densities of 650 g/litre and above are especially desirable.
  • High-bulk-density compositions in accordance with the invention may be prepared by a variety of processes, batch or continuous, some involving post-tower densification of a spray-dried powder, and others involving wholly non-tower processing.
  • Preferred processes involve subjecting a particulate starting material to a granulation and densification treatment, preferably in a high-speed mixer/granulator.
  • the starting material may be, in effect, a soap powder of conventional bulk density, already prepared by spray-drying or by a non-tower process such as dry mixing or granulation; alternatively, the high-speed mixer/granulator may be used to produce compositions of the invention directly from raw materials.
  • the high-speed mixer granulator is fed with a preprepared base powder plus other ingredients, or with a mixture of two or more different preprepared base powders.
  • An especially preferred process in accordance with the invention comprises granulation and densification, in a high-speed mixer/granulator, of a starting material consisting at least partially, preferably predominantly or wholly, of spray-dried powder. It has been found that the densified product has better powder properties than the lower-bulk-density starting powder, and disperses better in the washing machine.
  • the granulation and densification may be carried out in a high-speed mixer/granulator having both a stirring action and a cutting action, as described and claimed in EP 340 013A (Unilever).
  • a high-speed mixer/granulator having both a stirring action and a cutting action, as described and claimed in EP 340 013A (Unilever).
  • the stirrer and the cutter may be operated independently of one another, and at separately variable speeds.
  • Such a mixer is capable of combining a high energy stirring input with a cutting action, but can also be used to provide other, gentler stirring regimes with or without the cutter in operation. It is thus a highly versatile and flexible piece of apparatus.
  • a preferred type of batch high-speed mixer/granulator is bowl-shaped and preferably has a substantially vertical stirrer axis.
  • mixers of the Fukae (Trade Mark) FS-G series manufactured by Fukae Powtech Kogyo Co., Japan are essentially in the form of a bowl-shaped vessel accessible via a top port, provided near its base with a stirrer having a substantially vertical axis, and a cutter positioned on a side wall.
  • the stirrer and cutter may be operated independently of one another, and at separately variable speeds.
  • Another batch mixer found to be suitable for use in the process of the invention is the Lödige (Trade Mark) FM series batch mixer ex Morton Machine Co. Ltd., Scotland. This differs from the mixers mentioned above in that its stirrer has a horizontal axis.
  • the flow aid suitably has an average particle size within the range of from 0.1 to 20 ⁇ m, preferably from 1 to 10 ⁇ m.
  • a preferred material is finely divided amorphous sodium aluminosilicate, for example, Alusil (Trade Mark) ex Crosfield Chemicals Ltd, Warrington, Cheshire, England. Alusil is suitably used in amounts of from 1 to 7 wt%, preferably from 1.5 to 5 wt%.
  • Alusil is a preferred material, and is suitably used in amounts of from 0.2 to 5 wt%, preferably from 0.5 to 3 wt%.
  • the Fukae and similar mixers require batch operation.
  • continuous processes may be employed, for example, using a continuous high-speed mixer/granulator such as the Lödige (Trade Mark) Recycler, optionally followed by a moderate-speed continuous mixer/granulator such as the Lödige Ploughshare.
  • this apparatus can be used for both post-tower and non-tower processes, including in-situ preparation from raw materials. Suitable processes are disclosed in EP 367 339A, EP 390 251A and EP 420 317A (Unilever), and in our copending European Patent Application No. 91 200 740.8.
  • the granulate obtained from the mixer/granulator may be used as a complete detergent composition in its own right. Alternatively, it may be admixed with other components or mixtures prepared separately, and may form a major or minor part of a final product.
  • fine particles particles ⁇ 180 ⁇ m
  • the level of fine particles is not too high, preferably not exceeding 20 wt%, more preferably not exceeding 15 wt% and most preferably not exceeding 10 wt%.
  • fine particles may removed from the densified product by sieving, and it is then possible to achieve levels of 1 wt% or less.
  • a soap base powder was prepared to the following composition by spray-drying an aqueous slurry:
  • the soap was a 50:50 (by weight) mixture of sodium coconut soap and sodium oleate. It contained 37 wt% of Group (i) soap, 13 wt% of Group (ii) soap and 50 wt% of Group (iii) soap. Its Krafft temperature was 5°C.
  • a batch of this base powder was densified in the Fukae FS-100 high speed mixer/granulator as follows. 39 kg of the base powder and 1.0 kg of Alusil flow aid were charged into the mixer and granulated for 12 minutes at a stirrer speed of 130 rpm and a cutter speed of 1676 rpm. A further 500 g of Alusil were added and granulation continued for a further 5 minutes. The total amount of Alusil present during granulation was thus 3.7 wt%. A further 700 g of Alusil (ie 1.7 wt%) were then mixed in while the mixer was operated at a stirrer speed of 80 rpm and a cutter speed of 300 rpm. The product was then discharged.
  • the powder properties of the base powder before and after densification were as follows:
  • the densified powder contained ⁇ 7 wt% of particles ⁇ 2000 rm.
  • the content of fines was rather high (37 wt%), so these were removed by sieving, to give a fines content of about 0.6 wt%.
  • the two products were each used to wash a 1.5 kg soiled cotton load, in the presence of the test cloth monitors, in a National Electronic W100 top-loading washing machine; product dosage was 1.17 g/litre into 30 litres of water (6° French hard in Ca2+).
  • the wash temperature was 8°C, the wash time 10 minutes with an 10-minute running rinse.
  • Reflectance data at 460 nm of the washed cloths were measured using a Micromatch (Trade Mark) reflectometer.
  • Example 1 dispersed in the machine in ⁇ 1 minute, whereas the powder of Comparative Example A formed clumps on the surface which took >2 minutes to disperse. Neither powder left residues on the washload at the end of the wash.
  • the detergency of the densified product was slightly poorer than that of the undensified product, it was nevertheless better than that of the wholly non-soap commercial product, and substantially better than that of the soap liquid.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
EP19910305004 1990-06-06 1991-06-03 Soap powder compositions Ceased EP0460897A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909012613A GB9012613D0 (en) 1990-06-06 1990-06-06 Soap powder compositions
GB9012613 1990-06-06

Publications (2)

Publication Number Publication Date
EP0460897A2 true EP0460897A2 (fr) 1991-12-11
EP0460897A3 EP0460897A3 (en) 1993-01-07

Family

ID=10677159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910305004 Ceased EP0460897A3 (en) 1990-06-06 1991-06-03 Soap powder compositions

Country Status (9)

Country Link
US (1) US5298183A (fr)
EP (1) EP0460897A3 (fr)
JP (1) JPH0765076B2 (fr)
KR (1) KR950004823B1 (fr)
AU (1) AU631994B2 (fr)
BR (1) BR9102334A (fr)
CA (1) CA2043570A1 (fr)
GB (1) GB9012613D0 (fr)
ZA (1) ZA914330B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993015180A1 (fr) * 1992-02-04 1993-08-05 Henkel Kommanditgesellschaft Auf Aktien Procede pour fabriquer des produits solides de lavage et de nettoyage de densite apparente elevee et presentant une vitesse de dissolution amelioree
GB2323849A (en) * 1997-04-02 1998-10-07 Procter & Gamble Detergent composition
WO2006016712A1 (fr) 2004-08-11 2006-02-16 Nof Corporation Composition de savon en poudre

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GB9216386D0 (en) * 1992-07-31 1992-09-16 Unilever Plc Use of aluminosilicates of the zeolite p type as low temperature calcium binders
WO1996035772A1 (fr) * 1995-05-12 1996-11-14 The Procter & Gamble Company Batons de blanchissage a base de savon a fermete amelioree
GB9711359D0 (en) * 1997-05-30 1997-07-30 Unilever Plc Detergent powder composition
JP2000290698A (ja) * 1999-04-02 2000-10-17 Asahi Denka Kogyo Kk 粉末洗浄剤組成物
US20120046362A1 (en) * 2009-04-17 2012-02-23 Hiroshima University Antiviral agent and cleansing agent
US9157053B1 (en) 2009-07-01 2015-10-13 Thomas Tupaj Laundry washing machine deodorizer

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GB2034741A (en) * 1978-10-23 1980-06-11 Unilever Ltd Soap powder
EP0117568A1 (fr) * 1983-01-20 1984-09-05 Unilever N.V. Composition détergente particulaire
EP0339996A1 (fr) * 1988-04-29 1989-11-02 Unilever Plc Procédé de préparation des compositions détergentes
EP0425277A2 (fr) * 1989-10-27 1991-05-02 Unilever Plc Compositions détergentes
EP0351937B1 (fr) * 1988-07-21 1994-02-09 Unilever Plc Compositions détergentes et procédé pour leur préparation
JPH1172500A (ja) * 1997-08-29 1999-03-16 Nippon Seiko Kk 回転速度検出装置付転がり軸受ユニット

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GB2034741A (en) * 1978-10-23 1980-06-11 Unilever Ltd Soap powder
EP0117568A1 (fr) * 1983-01-20 1984-09-05 Unilever N.V. Composition détergente particulaire
EP0339996A1 (fr) * 1988-04-29 1989-11-02 Unilever Plc Procédé de préparation des compositions détergentes
EP0351937B1 (fr) * 1988-07-21 1994-02-09 Unilever Plc Compositions détergentes et procédé pour leur préparation
EP0425277A2 (fr) * 1989-10-27 1991-05-02 Unilever Plc Compositions détergentes
JPH1172500A (ja) * 1997-08-29 1999-03-16 Nippon Seiko Kk 回転速度検出装置付転がり軸受ユニット

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PATENT ABSTRACTS OF JAPAN vol. 13, no. 451 (C-643)(3799) 11 October 1989 & JP-A-11 72 500 ( MIYOSHI OIL & FAT CO LTD ) 7 July 1989 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993015180A1 (fr) * 1992-02-04 1993-08-05 Henkel Kommanditgesellschaft Auf Aktien Procede pour fabriquer des produits solides de lavage et de nettoyage de densite apparente elevee et presentant une vitesse de dissolution amelioree
GB2323849A (en) * 1997-04-02 1998-10-07 Procter & Gamble Detergent composition
WO2006016712A1 (fr) 2004-08-11 2006-02-16 Nof Corporation Composition de savon en poudre
EP1798280A1 (fr) * 2004-08-11 2007-06-20 Nof Corporation Composition de savon en poudre
EP1798280A4 (fr) * 2004-08-11 2009-12-16 Nof Corp Composition de savon en poudre
US7820613B2 (en) 2004-08-11 2010-10-26 Nof Corporation Powder soap composition

Also Published As

Publication number Publication date
AU7811291A (en) 1991-12-12
GB9012613D0 (en) 1990-07-25
JPH0765076B2 (ja) 1995-07-12
KR920000912A (ko) 1992-01-29
BR9102334A (pt) 1992-01-07
ZA914330B (en) 1993-02-24
KR950004823B1 (ko) 1995-05-13
JPH04314800A (ja) 1992-11-05
US5298183A (en) 1994-03-29
CA2043570A1 (fr) 1991-12-07
EP0460897A3 (en) 1993-01-07
AU631994B2 (en) 1992-12-10

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